Wago 750-484 Data Sheet

Data sheet | Item number:750-484

2-channel analog input; 4 … 20 mA HART; Intrinsically safe

750-484

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Data sheet | Item number:750-484

Item description

The analog input module connects two field-side transformers equipped with a HART interface that are to be used in hazardous environments of
Zones 0+1.

It supplies the transducers, reads the process values via analog interface and enables HART communication for configuring and importing dynamic
variables.

The WAGO-I/O-SYSTEM 750 must be installed either in Zone 2 or in a non-hazardous area.

The 24V supply is derived from the power jumper contacts via multipliers to the field contacts (HART +). The shield (screen) is directly connected to
the DIN rail.

The measurement input is equipped with current limitation, which limits the current to a max. 25mA. These modules can supply the voltage for 2­wire transducers without dedicated power supply.

Up to 4 HART dynamic variables (PV, SV, TV, QV) per channel can be mapped in the cyclic process image of the coupler or controller (configurable).
For HART communication with connected intelligent HART field devices, the HART protocol can be mapped in the cyclic process image of the
coupler or controller (configurable).

FDT/DTM device drivers are available for select (programmable) couplers, allowing HART tool routing to the connected HART device.

Note:

The analog input module must only be operated via Ex i 24VDC power supply!

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Data sheet | Item number:750-484

General information (e.g., installation regulations) on explosion protection is available in the WAGO-I/O-SYSTEM 750 manuals!

Data

Technical Data

Number of analog inputs 2

Total number of channels (module) 2

Type of signal Current

Type of signal current DC4 … 20mA

Sensor supply voltage DC16.5V;Transmitter supply U at 20 mA

V

Sensor connection 2 x (2-conductor)

Input filter parametrizable

Input filter: parametrizable (channel by channel) yes

Signal characteristic Single-ended

Diagnostics Wire break, measurement range overflow

Resolution [bit] 12 Bit

Power consumption P

max.

1.60 W (with slaves (20 mA))

Bit width 2 x 2-byte data; 2 x 2-byte data + 2n x 4-byte data (n = number of

dynamic variables); 2 x 2-byte data + 6-byte mailbox

Overvoltage protection 30 V, reverse polarity protected

Conversion time (typ. ≤) 10 ms

Messfehler, Bezugstemperatur 25 °C

Messfehler, Abweichung max. vom Messbereichsendwert 0.2 %

Temperaturfehler max. vom Messbereichsendwert 0.01 %/K

Intrinsic safety Ex i yes

System supply voltage DC5V;via data contacts

Current consumption, system supply (5 V) 25 mA

System and sensor supply voltage )

Field supply voltage DC24V;(Versorgung über Einspeisung Ex i U = max. 27,3 V); über

O

Leistungskontakte (Einspeisung über Messerkontakt; Weiterleitung
über Federkontakt)

Current consumption, field supply (module with no external load) 26 mA

HART devices per channel 1 device (single-drop, no multi-drop)

HART modems per channel 1 modem (no multiplex)

Power loss P

V

0.62 W (without slaves)

Isolation 300 VAC system/supply

Number of incoming power jumper contacts 2

Number of outgoing power jumper contacts 2

Current carrying capacity of the power jumper contacts 1 A

Ex guideline EN/IEC 60079-0, -7, -11, -26, -31

Electric circuit, safety-relevant data

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Data sheet | Item number:750-484

U = 27.3 V; I = 92.7 mA; P = 630 mW; Characteristic: Linear

o o o

Reactances Ex ia IIC L = 1.5 mH; C = 87 nF

o o

Reactances Ex ia IIB L = 15 mH; C = 670 nF

o o

Ex ia IIA reactances L = 38 mH; C = 2.2 μF

o o

ReactancesEx ia I L = 36 mH; C = 3.49 µF

o o

Reactances (The above-listed ratings do not account for the coincidental

occurrence of capacitances and inductances. For ratings taking the
coincidental occurrence of capacitances and inductances into
account, see manual)

Marking ATEX, IECEx, INMETRO, Underwriters Laboratories Inc.

Connection data

Connection technology: In-/Outputs

16 x CAGE CLAMP

®

Connection type (1) Inputs/Outputs

Solid conductor 0.08 … 2.5mm²/ 28 … 14AWG

Fine-stranded conductor 0.08 … 2.5mm²/ 28 … 14AWG

Strip length 8 … 9mm/ 0.31 … 0.35inch

Geometrical Data

Width 24mm/ 0.945inch

Height 67.8mm/ 2.669inch

Height from upper-edge of DIN-35 rail 60.6mm/ 2.386inch

Depth 100mm/ 3.937inch

Mechanical data

Type of mounting DIN-35 rail

Material Data

Color blue

Housing material Polycarbonate, polyamide 6.6

Weight 92 g

Conformity marking 1

Environmental Requirements

Surrounding air (operating) temperature 0 … 55°C

Surrounding air (storage) temperature -40 … 85°C

Protection class IP20

Degree of pollution (5) 2 per IEC 61131-2

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